American moving west

http://fineartamerica.com/featured/remington-indian-warfare-granger.html 

As the people of America moved westwards in exploration for land and wealth, nothing was gonna stop them and get in there way. The men leading the frontier were ruthless and persistent especially with the Native Americans, who were either forced to move on westwards running for their lives or they were simply killed on the spot.

The picture I have chosen by Remington: Indian Warfare  (1908) is a prime of example of the movement. The setting you can tell is in the West with the open grass land plains, where you have no natural or man made structure as far as the eye can see. In the foreground you have the stereotypical image of Native Americans, riding horses firing rifles - how factual this is to be decided as before the English came Native Americans didn't ride horses as dictated in this painting - but nevertheless you can see the panic and confusion amongst then as they are fleeing while being shot at by the Americans. In a way it can been seen that Remington is showing this movement from the Native American point of view as it is said that, 'His focus was firmly on the people and animals of the West'. Just by showing a view point like this you get a better understanding as the viewer of this painting to how the Natives may have felt. Fear. Panic. Confusion some of the many emotions shown on their faces. 

The American people, that you can see in the background, out numbered the Natives, were more skillful than the natives, out gunned the Natives which all contributed them to being more powerful then the natives. American people explored the west saw the land to free and open, not owned by anyone and there for it was there 'God given gift' to take and have which is why they were so ruthless as they saw it as their right to have it. In a way it can be seen that by the moving on and killings of Native Americans it was as a form of pest control as they were unwanted and not seen a part of the new image forward for America.